Improved crimping-machine



UNITED STATES PATENT OFFICE.

IMPROVED CRlMPlNG-MACHINE.

Specification forming part of Letters Patent No. 54,735, dated May 15,1866.

To all whom it may concern:

Be it known that I, JOHN P. JAMIsoN, of New York, in the county of NewYork, in the State of New York, have invented a new Mode 0f CrimpingLeather for Boot-Fronts; and I do hereby declare that the following is afull and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in perfectly crimping boot-fronts bymachinery and by one stroke ofmy machine; and I do hereby declare thatthe following is a full and eX- act description thereof.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

As shown in the drawing' No. 1, A is the frame which supports the rackand pinion B. The cross-piece C slides up and down upon frame A. rIhesprings D and E are secured to the cross-piece O. The front springs, D,are made stationary to the cross-sliding piece C by a bolt runningthrough springs D and cross-piece O. The back springs, E, are made fastto a rod by a nut at both ends, allowing the rod to play in cross-pieceG. At the bottom of the springs D and E are four brass jaws orstretchers, F.

Gris the crimping form or block upon which the leather is laid toreceive the action of the jaws or stretohers, and is secured to the bedof the machine by screws.

H represents two inclined planes, also secured tothe bottom or bed ofthe machine.

On both sides of the crimping form or block are rollers attached to thebrass jaws or stretchers F; As the crank or lever is turned back thejaws descend, the front ones perpendicularly, holding the leather whilethe back ones pass over the inclined plane H, thereby stretching andsmoothly carrying to its proper place the back part of the leather.

Having thus fully described the construction of the said machine and theoperation of its several parts, what I claim as my invention, and desireto secure by Letters Patent,

1. The four springs D and E, made of metal or other substances,adjusted, arranged, and secured to the cross-piece O in the mannerhereinabove substantially set forth and described.

2. The four brass jaws or stretohers marked F, in combination with saidfour springs, D and E, secured to the crossfbar O, as regulating and4providing for the selfadjustment thereof, as herein shown anddescribed.

New York, March l5, 1866.

JOHN P. JAMISON.

Witnesses G. W. JAMIsoN, R. R. RoLLINs, J AMEs PRICE.

